NANOFIBERS FOR APPLICATIONS IN MEMS,

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NANOFIBERS FOR APPLICATIONS IN MEMS,
NANOTECHNOLOGY, BIOTECHNOLOGY AND MEDICINE
   
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• High tensile strength stronger than steel (on
  weight basis )
• High extensibility comparable to rubber
  (elasticity)

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NANOFIBERS (Definition)
NANOFIBERS
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Electrospinning of Polymers
30000 Volt
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Electrospinning of nanofibers
30,000 Volt
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(No Transcript)
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SEM image of electrospun PET fibers. Fiber
diameters are in the range of 1.5 - 4 m
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Electron micrograph of 300 nm polybenzimidazole
nanofibers
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Woven polyester shirt fabric
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Nanofibers have large surface area per gram
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Research Goals Investigation of Nanofibers
Mechanical Properties Advanced process control
writing with fiber
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Potential Uses of nanofibers
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Protective Clothing
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Solar Sail Comet
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Solar sail freight arriving on Mars
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Leaf with nanofiberscontaining pesticide
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Nanofibers as a physical barrier to insects
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Bridge with nanofibers (Dupont)
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Fiber Optic - nanofibers
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Braid of aligned nanofibers. Density?100nfs/?m2
Several aligned nanofibers
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Super conductive nanofibers (Poly- acrylic acid
Salts)
Nanofiber after burnout
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Conductive nanofibers (PEDOT/PEO)
Current-Voltage Response
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Nanofiber nonwoven fabric
Soft-tissue biomedical applications
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A microelectrode records the firing of
individual cells in a monkey's visual cortex